对流单体受到超折射污染时，零速度线所在区域多普勒通道可采用中等级抑制，监测通道可采用强等级杂波抑制。
The medium level suppression in the Doppler channel and high level suppression in the Surveillance channel can be invoked when convective precipitation cells are contaminated.
而在线零售将三倍于总消费的增长速度，其中一半的销售额来自三线城市或者更深入的地区。
Online retail is expected to grow at triple the rate as overall retail, with half of sales coming from 3rd tier cities and below.
本文提出了加速度记录的零线漂移校正方法和校正准则。
This paper proposes a method of correcting the acceleration records.
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